Recent content by JCbullsallday

I actually don't think i have to go that steep, but i actually set it for tolerance/allowance in ratings; or is it a bit too much, from around 20degrees (actual max)? Thank you for mentioning the need for higher torque in inclines; I actually was trying to figure out how to set the max now that...

Im only going to have to reach 30 degrees max. For the braking, I've only decided on dynamic (resistive) braking on mostly flat surfaces, so unfortunately I haven't any plans on stronger brakes yet. Please do suggest/advise :) I'm thinking about using worm gear for that, and to avoid back...

I only see current and power ratings from posts of legit hobbyists or power wheelchair makers, unfortunately. But at least my computations have been checked and I now have a corrected set of equations, thank you so much haruspex for guiding me through!

oh yeah! haha got too caught up in getting the motor ratings, i kept doing the longer cut every time. super thanks! i needed the friction and rolling resistance review! so basically. I needed just P=T(rpm)(2pi/60)= Fv = (21.29 N)(1.25 m/s) = 26.617 W of power per wheel, all this time?? Is 2.2A...

yep I've read it. :) however my force equation is based on the movement from rest, hence the acceleration formula from zero velocity towards maximum speed. should anything else be changed? or did i misapply a formula?

thanks for the responses and the link! however i don't seem to follow you entirely. please bear with me hehe so what you're saying is to not include in the force/work equations the static friction, am i right? but how about if the above mentioned coefficient is the kinetic one? the one which, as...

yep between the wheel and the floor. i got the value from the wheels' specs. (isn't it the kinetic coefficient?) oh, aren't i supposed to include it in the calculations as the force opposing the skid, and that which makes the wheel roll on contact? would you mind elaborating why and what I...

Hi guys, Im trying to build an electric wheelchair with mecanum wheels, and as you might know, each of its 4 wheels has to be independently powered for the chair to have holonomic motion. With my desired speed to be around (brisk) walking speed only, say 1.15 m/s, and my mecanum wheels sized...